Question

At the evening party the host said ________ was able to solve the riddle could get a nice present as a reward.

A．whoever

B．who

C．no matter who

D．whomever

Answer 1

A

解析试题分析：考查主语从句。Whoever引导主语从句whoever was able to solve the riddle, 在句中做主语。故排除C项，C项不能引导主语从句。D项不能在句中做主语。A与B比较起来，A是最佳答案。句意:在晚会上，主持人说，任何一个能解决这个迷的人会得到一个漂亮的礼物作为奖励。故A正确。
考点：考查主语从句
点评：特殊疑问词+ever可以引导主语从句。Whoever在句中做主语。而no matter +特殊疑问词只能引导让步状语从句。